Rockwell Hardness Measurement of Metallic Materials

摘要

The Rockwell hardness test continues to be applied as a tool for assessing theproperties of a product while the tolerances on the acceptable material hardness have become tighter and tighter. The once-thought-of manufacturing tool has developed into a metrological instrument. The purpose of this Guide is not to specify the requirements for conducting a Rockwell hardness test. Test method standards published by national and international standards writing organizations, such as the American Society for Testing and Materials (ASTM) and the International Standards Organization (ISO), provide specific requirements and procedures for Rockwell hardness testing. The intention of this Guide is to explain the causes of variability in Rockwell hardness test results and to supplement the information given in test method standards with good practice recommendations.